I was assuming the same. That's why I suggested the Jetway solution. I is economic and works very well in many scenarios. Not, of course, if you need *concurrent* Gigabit access on several interfaces. I stress *concurrent*
I built one of these to connect several vlans to a 24Mbit ADSL internet access. It runs pfsense 2.0 and it works very well. Stable, fast and effective.